*{
    margin: 0;
    padding: 0;
}
ul li{
    list-style: none;
}
.btn1,.btn2,.btn3,.btn4{
    float: left;
    font-size: 14px;
    margin-top: 6px;
}
.clearfix:before,
.clearfix:after{
    content: "";
    display: block;
    clear: both;
}


.banner{
     height: 738px;
 }
.banner1{
     background: url("../images/banner.jpg");

}
.banner2{
    background: url("../images/banner2.jpg");

}
.banner3{
    background: url("../images/big1.jpg");

}

.co1{
    background: url("../images/banner4.jpg");
}


.card-text{
    height: 30px;
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;
}


.icn{
    padding-left: 32px;
}
.lin{
    padding: 40px 0 20px 0px;
}
.ipc{
    margin-top: 6px;
}

@media (max-width: 600px) {
    .banner{
        height: 300px;
    }
    .banner1{
        background: url("../images/banner.jpg") center center no-repeat;
        background-size: cover;
    }
    .banner2{
        background: url("../images/banner2.jpg") center center no-repeat;
        background-size: cover;
    }
    .banner3{
        background: url("../images/banner3.jpg") center center no-repeat;
        background-size: cover;
    }
}